Dump-wagon.



7e 0 9 l 5, l N. A Tu D ...n T N E M P w. w AND w. NNB. OP MGA LAD UWE M m P MMw IUI HDM R.. w T.. n A

2 SHEETS-SHEET l.

No. 841,411. PATENTED JAN. 15. 1907.-

R. H, MAGGLERNAN.

DUMP WAGON.

APPLICATION FILED APE.17,1906.

2 SHEETS-SHEET 2.

rn: .vonnis Pera-Rs ca., wAsHmnroN. D.

rrnn s'rafrns arena orrrcn.

RICHARD H. MACOLERNAN, OF WVEST PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CONTRACTORS WAGON COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

DUMP-WAGON.

Specification of Letters Patent.

Patented Jan. 15, 1907.

Application filed April 17,1906. Serial No. 312,089.

To all whom it muy concern.-

Be it known that I, RICHARD H. MACCLER- NAN, a citizen of the United States, residing at IVest Philadelphia, in the county of' Philadelphia and Stateof Pennsylvania, have invented certain new and useful Improvements in Dump-Vagons, of which the following is a specification.

My invention has relation to dump-wagons, having reference more particularly to the type of such wagons in which the bottom is composed of sections detachably connected with the sides of the wagon.

The principal objects of my present invention are, first, to provide each of the doors of the dumpwagon, adjacent to the meeting ends thereof, with a combined chain guide and truss to receive and protect the portions of the chain passing over the doors from dirt and other extraneous matter and at the same time to strengthen the doors at the point of greatest strain exerted by the load resting thereon second, to provide each of the doors with strengthening or channel irons arranged at a right angle to the doortrusses to prevent, in conjunctionwith the trusses, buckling and bending of the doors and to form also one member of a hinge third, to provide the wagon-body with strengthening ribs or irons, forming the continuation of the strengthening-irons of the doors and terminating in hooks forming the other member of the hinge for the doors by engaging openings in strengthening-irons of the same, fourth, to provide the dump wagon with means to permit of release of a locking-pawl from a ratchet-wheel for the chain-shaft thereof by foot and hand power, and, fifth, to so arrange the guide-roller for the chain at the rear portion of the wagonbody as that the chain members in an open position of the doors will rest parallel to the doors to clear in such position the contents of the wagon in the dumping thereof.

The nature and scope of my said invention will be more fully understood from the following description, taken in connection with the accompanying drawings, forming part thereof, in which- Figure l is a view illustrating in side elevation the dump-wagon, showing the doors thereof in an open or lowered position, the truss consisting of a channel-iron and pipe for receiving and protecting a certain portion of the chain arranged adjacent to the meeting edge of the doors, the hinge members forming strengthening-irons for the sides of the wagon-box and the doors thereof, and guide-pieces arranged at the ends of the trusses for preventing wear of the chain, all embodying characteristic main features of my said invention. Fig. 2 is a view illustrating in elevation the rear end of the dumpwagon, the arrangement of the guide-rollers fory the chain supporting the free ends of the doors occupying a closed position, and also showing in dotted outline the position the members of the chain occupy when the doors are in a lowered position. Fi 3 is a cross-sectional view on the line x o Fig. l, illustrating the shaft upon which the ends of the chain are Wound and means for rotating and locking the shaft in any given position. Fig. 4 is a detail view illustrating in section the front portion of the wagon-box and showing in elevation the mechanism for disengaging the locking-pawl of the chain-shaft by foot and hand power. Fig. 5 is a detail view, enlarged, illustrating perspectively a portion of one of the sides of the .wagon-box and a portion of a door, and also showing the manner of forming a hinge by the channelirons and strengthening-ribs, respectively,

secured to the wagonebox and the doors thereof. Fig. 6 is a sectional view, enlarged, on the line y y of Fig. l, illustrating the formation of a truss by a channel-iron and a tube or pipe arranged therein and the chain passing through the pipe;and Fig. 7 is a detail View, enlarged, illustrating in section an end portion of one of the doors, the guidepiece arranged at the end ofthe channeliron, and the pipe secured to the door for preventing wear of the chain in the guiding of the same over a curved portion of the guide-piece.

Referring to the drawings, a represents the wagon-body, which for the sake of strength and simplicity is not undercut at the front end (L, but is sufficiently raised above the axles a2 of the wheels a3 and a4 to permit the front wheel a3 to readily pass beneath the box c in the turning of the dump-Wagon, as will be readily understood in Fig. l. To the sides c5 of the body a are secured at certain distances apart bars or strips b, which terminate at their lower ends in hooks b', projecting a certain distance below the lower edge of the sides a5 and passing through openings c, arranged in the free ends of channel-irons c, secured to the doors (l and d of the wagonbody a. The strips b and channel-irons c thus form hinges which movably connect the doors d and d with the wagon-body and at the same time serve to reinforce the sides a5 of the body a', as well as the doors d and d. The hinges so formed permit of the ready disengagement of the doors d and d from the body a by lifting and then bringing the openings c of the channel-irons c out of engagement with the hooks of the strips b. In order to further strengthen the doors d and d, the same at their meeting ends and at the point of greatest strain are provided, preferably, with channel-irons da, in each of which is placed a tube or pipe d4, as shown in Figs. 1 and 6. The pipe d4 in conjunction with the channel-iron (Z3 forms a truss of great strength, which effectually prevents bending and buckling of the doors d and d in a longitudinal direction, while the channel-irons c assist in the strengthening of the doors and the preventing of the bending and buckling ofthe doors in a transverse direction. The doors (l and d thus constructed will readily sustain any load which may be placed in the wagon-body upon the doors when the same occupy a closed or operative position, as shown in full lines in Fig. 2. In addition to strengthening the channel-irons d3 the pipes or tubes d4 also serve to receiveand guide portions of a chain e, which is conducted over guide-rollers f, secured to the rear wall a of the wagon-body a, from which the same passes through the pipes'or tubes C14 from the rear portion of the wagon-body to the front a thereof and is there fastened with its ends c to a shaft or drum g, arranged in the front portion c of the wagon-body, as shown in Figs. 1, 2, and 3.

In order to prevent wear of the chain e by the passing of the same over sharp edgesfor instance, over one of the ends of the tubes or pipes d4-tl1e doors d and d, adjacent to the ends of the channel-irons d3 and pipes d4, are provided with guide-pieces h, having curved portions h and openings h2, through which the chain e is conducted, as shown in Fig. 7. The chain by sliding over the curved portion 7L of the guide-pieces h will not be subjected to rapid wear at the portions which contact with the curved portions. At the same time when the doors d and rl are released these curved portions h will permit of a quick movement of the chain e over the same, thus permitting an almost instant drop of the doors d and d and greatly shortening the time necessary to dump the load. The door d at the point d5 is bent so as to overlap the door d and to form a tight joint at the meeting or overlapping ends thereof,

as shown in Figs. 2 and 3. Owing to the location of the guide-rollers f at the upper ends of the rear wall as, the portions of the chain e connected with the doors d and d at the rear end of the wagon-body c will assume a parallel position with respect to the doors d and d@ when the same are lowered or open, as shown in dotted outline in Fig. 2, and will thus effectually clear the contents of the wagon-body dumped between the doors.

The wagon A when moved forward will not be impeded in its advance, as is the case in dump-wagons in which the chain or chains, owing to their arrangement, are forced to contact with the dumping matter when consisting of stone, brick, and other unyielding matter, prevent the wagon from being quickly moved away from the dumped material.

The tubes d4 protect the chain e from being clogged with dirt or other extraneous matter at that portion passing through the same, which is important in case gritty, pulverized, and soft sticky material is hauled by the dump-wagon, which in accumulating in the chain causes rust .and rapid wear of the same.

In order to permit of a quick release of the shaft g, upon which the ends e. of the chain e are wound either by foot or hand power, the following preferred mechanism is employed: To the shaft g and in proximity to one of the sides a5 of the wagon-body a is rigidly secured a ratchet-wheel i, while a hand-lever 7c is loosely connected therewith and is supported at one end by a catch or rest Z, secured to the sides a5. The hand-lever 7c when raised permits its pawl c, otherwise by gravity held out of engagement with the ratchet-wheel i, to engage therewith and permit of rotation of the shaft g by the ratchetwheel i, and thus of the winding up of the ends e/ of the chain e upon the shaft g, by which winding the doors d and d are raised and the wagon-body a at the bottom closed. A pawl m, pivotally'secured in the point m to one of the sides a5 of the wagon-body a by means of a spring n engaging the arm m2 thereof, is held in engagement with the ratchet-wheel i, thus holding the same in any position given, by the hand-lever k and its pawl 7c.

As shown in Fig. 4, the arm m2 of the pawl m by means of a link m3 is connected with a treadle mt, pivotally secured in the point m5 to the fixed bottom as of the front or seat end a of the wagon-body a. When the treadle m4 is depressed by the foot of the driver, the pawl m is brought out of engagement with the ratchet-wheel i, thus permitting of the unwinding of the ends e of the chain e and the lowering of the doors d and d under the' weight of the load resting thereupon. i Instead of disengaging the pawl m from the ratchet-wheel 'L by the treadle m4 the same can be readily disengaged by the hand-lever k, for which purpose it is first slightly lifted to bring the lever' out of engagement with the rest Z, after which the lever c is depressed to bring the end 7c2 thereof into engagement with the paivl m to disengage the same from the ratchet-wheel i. The ends e of the chain e at the front portion c of the Wagon-body a, are preferably carried through a guide o to insure a proper Winding of the same upon the shaft g, as will be seen from Fig. 3 of the drawings.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. A dump-Wagon provided with a box, ribs secured to the sides of said'box and having hooks and doors having strengthening means provided with eyes adapted to form in conjunction with said hooks hinges to connect said doors with said box.

2. A dump-Wagon provided with a box, ribs secured to the sides of said box and having hooks, doors having strengthening means provided with eyes adapted to form in conjunction With said hooks hinges to connect said doors with said box and means connected with said doors adapted to prevent bending and buckling of said doors at the meeting ends.

3. A dump-Wagon provided with a box, a chain, doors pivotally secured to said box and adapted when closed by said chain to form the bottom thereof, trusses secured to said doors, said trusses consisting of channelirons and pipes placed therein adapted as so arranged to resist bending and buckling of said doors at their meeting ends, and said pipes adapted to receive and guide said chain.

fl. A dump-Wagon provided With a box, ribs secured to the sides thereof having hooks, doors, channel-irons secured thereto and having eyes adapted to form in conjunction with said hooks hinges to connect said doors With said box, channel-irons and pipes secured to said doors, the ribs of said box adapted to strengthen the sides thereof and the ribs, channel-irons and pipes adapted to strengthen said doors so as to prevent bending and buckling thereof.

5. A dump-Wagon provided With a box, ribs secured to the sides of said box and having hooks, doors having strengthening means provided with eyes adapted to form in conjunction With said hooks .hinges to connect said doors with said box, means connected with said doors adapted to prevent bending and buckling of said doors at the meeting ends and having guides forming extensions thereof and chains passing through said means and over said extensions.

6. A dump-Wagon provided with a box, a chain, doors pivotally secured to said box and adapted to be held in a closed position by said chain, a shaft secured to said box and adapted to receive and tighten said chain to hold said doors closed, a ratchet-Wheel secured to said shaft, a paWl adapted to engage said Wheel and hold said chain in a l tightened condition by said shaft, a treadle connected With said paWl, and a hand-lever loosely mounted on said shaft and having an extension, said lever adapted to rotate said Wheel and shaft When operated in a certain position and When depressed to release said paWl bv said extension, and said treadle adapted When operated to disengage said.

pawl from said Wheel independently of said GVG?.

In Witness whereof I have hereunto set my signature in the presence of tWo subscribing Witnesses.

RICHARD H. MAGCLERNAN.

Witnesses:

J. VALTER UoUGLAss, THOMAS M. SMITH. 

